CVE-2026-90238 (GCVE-0-2026-90238)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:07 – Updated: 2026-09-17 16:07
VLAI
Title
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
Summary
In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path isp4sd_pwron_and_init() holds ops_mutex via guard(mutex) and, on any init failure, jumps to err_deinit and calls isp4sd_pwroff_and_deinit(). That helper takes the same ops_mutex, re-acquiring a non-recursive mutex already held by the current thread, so any init failure deadlocks. Unwind the error path in stages instead, releasing only what each failure point acquired. This also avoids the issues that an unconditional teardown would hit at the earlier failures, such as a runtime-PM underflow from pm_runtime_resume_and_get() and MMIO access while the device is unpowered.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4e5e7a7ddb4ab9ac35928d7dc72efc8797639dc3 , < 74669cc3483e9729ca26b4e06a096ccdd607db64 (git)
Affected: 4e5e7a7ddb4ab9ac35928d7dc72efc8797639dc3 , < ef46d80a7015269a98c9505b5912a83798799199 (git)
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Linux Linux Affected: 7.2
Unaffected: 0 , < 7.2 (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:07:43.159Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2026-09-17T16:07:43.159Z",
    "dateReserved": "2026-09-11T19:38:34.794Z",
    "dateUpdated": "2026-09-17T16:07:43.159Z",
    "state": "PUBLISHED"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path\n\nisp4sd_pwron_and_init() holds ops_mutex via guard(mutex) and, on any\ninit failure, jumps to err_deinit and calls isp4sd_pwroff_and_deinit().\nThat helper takes the same ops_mutex, re-acquiring a non-recursive mutex\nalready held by the current thread, so any init failure deadlocks.\n\nUnwind the error path in stages instead, releasing only what each\nfailure point acquired. This also avoids the issues that an\nunconditional teardown would hit at the earlier failures, such as a\nruntime-PM underflow from pm_runtime_resume_and_get() and MMIO access\nwhile the device is unpowered."
          }
        ],
        "id": "CVE-2026-90238",
        "lastModified": "2026-09-17T17:17:19.753",
        "metrics": {},
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      "cve": "CVE-2026-90238",
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      "product_status:known_not_affected": "347",
      "source": "SUSE CSAF VEX",
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      "title": "SUSE CVE CVE-2026-90238",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-90238.json",
      "version": "2"
    }
  }
}



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